diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fb95ebccf8aae3eee0d473c1477b0d5a5f53e53a..bea27943fd7953c0acf56deb5ca244c9baef889a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ image: python:3.12-alpine
 pages:
   stage: deploy
   script:
-  - apk add --update --no-cache make
+  - apk add --update --no-cache make asciidoc asciidoctor
   - pip install -r requirements.txt
   ##
   ## Use a custom theme.
@@ -20,7 +20,7 @@ pages:
 test:
   stage: test
   script:
-  - apk update && apk add make
+  - apk add --update --no-cache make asciidoc asciidoctor
   - pip install -r requirements.txt
   - make publish
   rules: